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Petralogy vs Tetralogy - What's the difference?

petralogy | tetralogy |

As nouns the difference between petralogy and tetralogy

is that petralogy is alternative form of lang=en while tetralogy is a set of four works of art that are connected, and that can be seen either as a single work or as four individual works. They are commonly found in literature, film, or video games.

tetralogy

Noun

(tetralogies)
  • A set of four works of art that are connected, and that can be seen either as a single work or as four individual works. They are commonly found in literature, film, or video games.
  • (medicine) A combination of four symptoms.
  • Synonyms

    * quadrilogy (nonstandard)